2 * l2_input.c : layer 2 input packet processing
4 * Copyright (c) 2013 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #include <vlib/vlib.h>
19 #include <vnet/vnet.h>
20 #include <vnet/ethernet/ethernet.h>
21 #include <vnet/ethernet/packet.h>
22 #include <vnet/ip/ip_packet.h>
23 #include <vnet/ip/ip4_packet.h>
24 #include <vnet/ip/ip6_packet.h>
25 #include <vnet/fib/fib_node.h>
26 #include <vnet/ethernet/arp_packet.h>
28 #include <vnet/l2/l2_input.h>
29 #include <vnet/l2/l2_output.h>
30 #include <vnet/l2/feat_bitmap.h>
31 #include <vnet/l2/l2_bvi.h>
32 #include <vnet/l2/l2_fib.h>
33 #include <vnet/l2/l2_bd.h>
35 #include <vppinfra/error.h>
36 #include <vppinfra/hash.h>
37 #include <vppinfra/cache.h>
41 * @brief Interface Input Mode (Layer 2 Cross-Connect or Bridge / Layer 3).
43 * This file contains the CLI Commands that modify the input mode of an
44 * interface. For interfaces in a Layer 2 cross-connect, all packets
45 * received on one interface will be transmitted to the other. For
46 * interfaces in a bridge-domain, packets will be forwarded to other
47 * interfaces in the same bridge-domain based on destination mac address.
48 * For interfaces in Layer 3 mode, the packets will be routed.
51 /* Feature graph node names */
52 static char *l2input_feat_names[] = {
53 #define _(sym,name) name,
59 l2input_get_feat_names (void)
61 return l2input_feat_names;
65 format_l2_input_feature_bitmap (u8 * s, va_list * args)
67 static char *display_names[] = {
68 #define _(sym,name) #sym,
72 u32 feature_bitmap = va_arg (*args, u32);
73 u32 verbose = va_arg (*args, u32);
75 if (feature_bitmap == 0)
77 s = format (s, " none configured");
81 feature_bitmap &= ~L2INPUT_FEAT_DROP; /* Not a feature */
83 for (i = L2INPUT_N_FEAT - 1; i >= 0; i--)
85 if (feature_bitmap & (1 << i))
88 s = format (s, "%17s (%s)\n",
89 display_names[i], l2input_feat_names[i]);
91 s = format (s, "%s ", l2input_feat_names[i]);
98 format_l2_input_features (u8 * s, va_list * args)
100 u32 sw_if_index = va_arg (*args, u32);
101 u32 verbose = va_arg (*args, u32);
103 l2_input_config_t *l2_input = l2input_intf_config (sw_if_index);
104 u32 fb = l2_input->feature_bitmap;
106 /* intf input features are masked by bridge domain */
107 if (l2_input_is_bridge (l2_input))
108 fb &= l2_input->bd_feature_bitmap;
111 format (s, "\nl2-input:\n%U", format_l2_input_feature_bitmap, fb,
118 format_l2_input (u8 * s, va_list * args)
120 u32 sw_if_index = va_arg (*args, u32);
121 l2_input_config_t *l2_input = l2input_intf_config (sw_if_index);
123 /* intf input features are masked by bridge domain */
124 if (l2_input_is_bridge (l2_input))
126 bd_main_t *bdm = &bd_main;
127 u32 bd_id = l2input_main.bd_configs[l2_input->bd_index].bd_id;
129 s = format (s, " L2 bridge bd-id %d idx %d shg %d %s",
130 bd_id, bd_find_index (bdm, bd_id), l2_input->shg,
131 l2_input_is_bvi (l2_input) ? "bvi" : " ");
133 else if (l2_input_is_xconnect (l2_input))
134 s = format (s, " L2 xconnect %U",
135 format_vnet_sw_if_index_name, vnet_get_main (),
136 l2_input->output_sw_if_index);
142 l2input_init (vlib_main_t * vm)
144 l2input_main_t *mp = &l2input_main;
147 mp->vnet_main = vnet_get_main ();
149 /* Get packets RX'd from L2 interfaces */
150 ethernet_register_l2_input (vm, l2input_node.index);
152 /* Initialize the feature next-node indexes */
153 feat_bitmap_init_next_nodes (vm,
156 l2input_get_feat_names (),
157 mp->feat_next_node_index);
162 VLIB_INIT_FUNCTION (l2input_init);
165 /** Get a pointer to the config for the given interface. */
167 l2input_intf_config (u32 sw_if_index)
169 l2input_main_t *mp = &l2input_main;
171 vec_validate (mp->configs, sw_if_index);
172 return vec_elt_at_index (mp->configs, sw_if_index);
175 /** Enable (or disable) the feature in the bitmap for the given interface. */
177 l2input_intf_bitmap_enable (u32 sw_if_index,
178 l2input_feat_masks_t feature_bitmap, u32 enable)
180 l2_input_config_t *config = l2input_intf_config (sw_if_index);
183 config->feature_bitmap |= feature_bitmap;
185 config->feature_bitmap &= ~feature_bitmap;
187 return config->feature_bitmap;
191 l2input_set_bridge_features (u32 bd_index, u32 feat_mask, u32 feat_value)
193 l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index);;
194 bd_validate (bd_config);
195 bd_config->feature_bitmap =
196 (bd_config->feature_bitmap & ~feat_mask) | feat_value;
197 return bd_config->feature_bitmap;
201 l2input_interface_mac_change (u32 sw_if_index,
202 const u8 * old_address, const u8 * new_address)
204 /* check if the sw_if_index passed is a BVI in a BD */
205 l2_input_config_t *intf_config;
207 intf_config = l2input_intf_config (sw_if_index);
209 if (l2_input_is_bridge (intf_config) && l2_input_is_bvi (intf_config))
211 /* delete and re-add l2fib entry for the bvi interface */
212 l2fib_del_entry (old_address, intf_config->bd_index, sw_if_index);
213 l2fib_add_entry (new_address,
214 intf_config->bd_index,
216 L2FIB_ENTRY_RESULT_FLAG_BVI |
217 L2FIB_ENTRY_RESULT_FLAG_STATIC);
222 l2input_recache (u32 bd_index, u32 sw_if_index)
224 l2_input_config_t *input;
225 l2_bridge_domain_t *bd;
227 bd = bd_get (bd_index);
228 input = l2input_intf_config (sw_if_index);
230 input->bd_mac_age = bd->mac_age;
231 input->bd_seq_num = bd->seq_num;
232 input->bd_feature_bitmap = bd->feature_bitmap;
234 return (WALK_CONTINUE);
238 l2_input_seq_num_inc (u32 sw_if_index)
240 l2_input_config_t *input;
242 input = vec_elt_at_index (l2input_main.configs, sw_if_index);
248 * Set the subinterface to run in l2 or l3 mode.
249 * For L3 mode, just the sw_if_index is specified.
250 * For bridged mode, the bd id and bvi flag are also specified.
251 * For xconnect mode, the peer sw_if_index is also specified.
252 * Return 0 if ok, or non-0 if there was an error.
256 set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
257 u32 mode, /* One of L2 modes or back to L3 mode */
258 u32 sw_if_index, /* sw interface index */
259 u32 bd_index, /* for bridged interface */
260 l2_bd_port_type_t port_type, /* port_type */
261 u32 shg, /* the bridged interface split horizon group */
262 u32 xc_sw_if_index) /* peer interface for xconnect */
264 l2output_main_t *l2om = &l2output_main;
265 vnet_main_t *vnm = vnet_get_main ();
266 vnet_hw_interface_t *hi;
267 l2_output_config_t *out_config;
268 l2_input_config_t *config;
269 l2_bridge_domain_t *bd_config;
270 i32 l2_if_adjust = 0;
271 vnet_device_class_t *dev_class;
273 hi = vnet_get_sup_hw_interface (vnet_main, sw_if_index);
274 config = l2input_intf_config (sw_if_index);
276 if (l2fib_main.mac_table_initialized == 0)
279 if (l2_input_is_bridge (config))
281 /* Interface is already in bridge mode. Undo the existing config. */
282 bd_config = bd_get (config->bd_index);
284 /* remove interface from flood vector */
285 bd_remove_member (bd_config, sw_if_index);
287 /* undo any BVI-related config */
288 if (bd_config->bvi_sw_if_index == sw_if_index)
290 vnet_sw_interface_t *si;
292 bd_config->bvi_sw_if_index = ~0;
293 config->flags &= ~L2_INPUT_FLAG_BVI;
295 /* delete the l2fib entry for the bvi interface */
296 l2fib_del_entry (hi->hw_address, config->bd_index, sw_if_index);
298 /* since this is a no longer BVI interface do not to flood to it */
299 si = vnet_get_sw_interface (vnm, sw_if_index);
300 si->flood_class = VNET_FLOOD_CLASS_NO_FLOOD;
302 if (bd_config->uu_fwd_sw_if_index == sw_if_index)
304 bd_config->uu_fwd_sw_if_index = ~0;
305 bd_config->feature_bitmap &= ~L2INPUT_FEAT_UU_FWD;
308 /* Clear MACs learned on the interface */
309 if ((config->feature_bitmap & L2INPUT_FEAT_LEARN) ||
310 (bd_config->feature_bitmap & L2INPUT_FEAT_LEARN))
311 l2fib_flush_int_mac (vm, sw_if_index);
313 bd_input_walk (config->bd_index, l2input_recache, NULL);
316 else if (l2_input_is_xconnect (config))
321 /* Make sure vector is big enough */
322 vec_validate_init_empty (l2om->output_node_index_vec, sw_if_index,
325 /* Initialize the l2-input configuration for the interface */
328 /* Set L2 config to BD index 0 so that if any packet accidentally
329 * came in on L2 path, it will be dropped in BD 0 */
330 config->flags = L2_INPUT_FLAG_NONE;
332 config->bd_index = 0;
333 config->feature_bitmap = L2INPUT_FEAT_DROP;
335 /* Clear L2 output config */
336 out_config = l2output_intf_config (sw_if_index);
337 clib_memset (out_config, 0, sizeof (l2_output_config_t));
339 /* Make sure any L2-output packet to this interface now in L3 mode is
340 * dropped. This may happen if L2 FIB MAC entry is stale */
341 l2om->output_node_index_vec[sw_if_index] = L2OUTPUT_NEXT_BAD_INTF;
345 /* Add or update l2-output node next-arc and output_node_index_vec table
346 * for the interface */
347 l2output_create_output_node_mapping (vm, vnet_main, sw_if_index);
349 if (mode == MODE_L2_BRIDGE)
354 * Remove a check that the interface must be an Ethernet.
355 * Specifically so we can bridge to L3 tunnel interfaces.
357 * if (hi->hw_class_index != ethernet_hw_interface_class.index)
361 return MODE_ERROR_ETH; /* non-ethernet */
363 config->flags = L2_INPUT_FLAG_BRIDGE;
364 config->bd_index = bd_index;
365 l2_input_seq_num_inc (sw_if_index);
368 * Enable forwarding, flooding, learning and ARP termination by default
369 * (note that ARP term is disabled on BD feature bitmap by default)
371 config->feature_bitmap |= (L2INPUT_FEAT_FWD |
372 L2INPUT_FEAT_UU_FLOOD |
373 L2INPUT_FEAT_UU_FWD |
376 L2INPUT_FEAT_ARP_UFWD |
377 L2INPUT_FEAT_ARP_TERM);
379 /* Make sure last-chance drop is configured */
380 config->feature_bitmap |= L2INPUT_FEAT_DROP;
382 /* Make sure xconnect is disabled */
383 config->feature_bitmap &= ~L2INPUT_FEAT_XCONNECT;
385 /* Set up bridge domain */
386 bd_config = l2input_bd_config (bd_index);
387 bd_validate (bd_config);
389 /* TODO: think: add l2fib entry even for non-bvi interface? */
391 /* Do BVI interface initializations */
392 if (L2_BD_PORT_TYPE_BVI == port_type)
394 vnet_sw_interface_t *si;
396 /* ensure BD has no bvi interface (or replace that one with this??) */
397 if (bd_config->bvi_sw_if_index != ~0)
399 return MODE_ERROR_BVI_DEF; /* bd already has a bvi interface */
401 bd_config->bvi_sw_if_index = sw_if_index;
402 config->flags |= L2_INPUT_FLAG_BVI;
404 /* create the l2fib entry for the bvi interface */
405 l2fib_add_entry (hi->hw_address, bd_index, sw_if_index,
406 L2FIB_ENTRY_RESULT_FLAG_BVI |
407 L2FIB_ENTRY_RESULT_FLAG_STATIC);
409 /* Disable learning by default. no use since l2fib entry is static. */
410 config->feature_bitmap &= ~L2INPUT_FEAT_LEARN;
412 /* since this is a BVI interface we want to flood to it */
413 si = vnet_get_sw_interface (vnm, sw_if_index);
414 si->flood_class = VNET_FLOOD_CLASS_BVI;
415 member_flags = L2_FLOOD_MEMBER_BVI;
417 else if (L2_BD_PORT_TYPE_UU_FWD == port_type)
419 bd_config->uu_fwd_sw_if_index = sw_if_index;
420 bd_config->feature_bitmap |= L2INPUT_FEAT_UU_FWD;
424 member_flags = L2_FLOOD_MEMBER_NORMAL;
427 if (L2_BD_PORT_TYPE_NORMAL == port_type ||
428 L2_BD_PORT_TYPE_BVI == port_type)
430 /* Add interface to bridge-domain flood vector */
431 l2_flood_member_t member = {
432 .sw_if_index = sw_if_index,
433 .flags = member_flags,
436 bd_add_member (bd_config, &member);
439 else if (mode == MODE_L2_XC)
441 config->flags = L2_INPUT_FLAG_XCONNECT;
442 config->output_sw_if_index = xc_sw_if_index;
444 /* Make sure last-chance drop is configured */
445 config->feature_bitmap |= L2INPUT_FEAT_DROP;
447 /* Make sure bridging features are disabled */
448 config->feature_bitmap &=
449 ~(L2INPUT_FEAT_LEARN | L2INPUT_FEAT_FWD | L2INPUT_FEAT_FLOOD);
451 config->feature_bitmap |= L2INPUT_FEAT_XCONNECT;
452 shg = 0; /* not used in xconnect */
454 else if (mode == MODE_L2_CLASSIFY)
456 config->flags = L2_INPUT_FLAG_XCONNECT;
457 config->output_sw_if_index = xc_sw_if_index;
459 /* Make sure last-chance drop is configured */
460 config->feature_bitmap |=
461 L2INPUT_FEAT_DROP | L2INPUT_FEAT_INPUT_CLASSIFY;
463 /* Make sure bridging features are disabled */
464 config->feature_bitmap &=
465 ~(L2INPUT_FEAT_LEARN | L2INPUT_FEAT_FWD | L2INPUT_FEAT_FLOOD);
466 shg = 0; /* not used in xconnect */
469 /* set up split-horizon group and set output feature bit */
471 out_config = l2output_intf_config (sw_if_index);
472 out_config->shg = shg;
473 out_config->feature_bitmap |= L2OUTPUT_FEAT_OUTPUT;
476 * Test: remove this when non-IP features can be configured.
477 * Enable a non-IP feature to test IP feature masking
478 * config->feature_bitmap |= L2INPUT_FEAT_CTRL_PKT;
483 bd_input_walk (bd_index, l2input_recache, NULL);
486 /* Adjust count of L2 interfaces */
487 hi->l2_if_count += l2_if_adjust;
489 if (hi->hw_class_index == ethernet_hw_interface_class.index)
491 if ((hi->l2_if_count == 1) && (l2_if_adjust == 1))
493 /* Just added first L2 interface on this port
494 * Set promiscuous mode on the l2 interface */
495 ethernet_set_flags (vnet_main, hi->hw_if_index,
496 ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
498 else if ((hi->l2_if_count == 0) && (l2_if_adjust == -1))
500 /* Just removed only L2 subinterface on this port
501 * Disable promiscuous mode on the l2 interface */
502 ethernet_set_flags (vnet_main, hi->hw_if_index,
503 /*ETHERNET_INTERFACE_FLAG_DEFAULT_L3 */ 0);
508 /* Set up the L2/L3 flag in the interface parsing tables */
509 ethernet_sw_interface_set_l2_mode (vnm, sw_if_index, (mode != MODE_L3));
511 dev_class = vnet_get_device_class (vnet_main, hi->dev_class_index);
512 if (dev_class->set_l2_mode_function)
514 dev_class->set_l2_mode_function (vnet_main, hi, l2_if_adjust);
520 static clib_error_t *
521 l2_input_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
525 vlib_main_t *vm = vlib_get_main ();
526 l2_input_config_t *config;
528 if (sw_if_index < vec_len (l2input_main.configs))
530 config = vec_elt_at_index (l2input_main.configs, sw_if_index);
531 if (l2_input_is_xconnect (config))
532 set_int_l2_mode (vm, vnm, MODE_L3, config->output_sw_if_index, 0,
533 L2_BD_PORT_TYPE_NORMAL, 0, 0);
534 if (l2_input_is_xconnect (config) || l2_input_is_bridge (config))
535 set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0,
536 L2_BD_PORT_TYPE_NORMAL, 0, 0);
543 VNET_SW_INTERFACE_ADD_DEL_FUNCTION (l2_input_interface_add_del);
546 * Set subinterface in bridging mode with a bridge-domain ID.
548 * set interface l2 bridge <interface> <bd> [bvi] [split-horizon-group]
550 static clib_error_t *
551 int_l2_bridge (vlib_main_t * vm,
552 unformat_input_t * input, vlib_cli_command_t * cmd)
554 vnet_main_t *vnm = vnet_get_main ();
555 l2_bd_port_type_t port_type;
556 clib_error_t *error = 0;
562 if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
564 error = clib_error_return (0, "unknown interface `%U'",
565 format_unformat_error, input);
569 if (!unformat (input, "%d", &bd_id))
571 error = clib_error_return (0, "expected bridge domain ID `%U'",
572 format_unformat_error, input);
576 if (bd_id > L2_BD_ID_MAX)
578 error = clib_error_return (0, "bridge domain ID exceed 16M limit",
579 format_unformat_error, input);
582 bd_index = bd_find_or_add_bd_index (&bd_main, bd_id);
585 port_type = L2_BD_PORT_TYPE_NORMAL;
586 if (unformat (input, "bvi"))
587 port_type = L2_BD_PORT_TYPE_BVI;
588 if (unformat (input, "uu-fwd"))
589 port_type = L2_BD_PORT_TYPE_UU_FWD;
591 /* optional split horizon group */
593 (void) unformat (input, "%d", &shg);
595 /* set the interface mode */
597 set_int_l2_mode (vm, vnm, MODE_L2_BRIDGE, sw_if_index, bd_index,
600 if (rc == MODE_ERROR_ETH)
602 error = clib_error_return (0, "bridged interface must be ethernet",
603 format_unformat_error, input);
605 else if (rc == MODE_ERROR_BVI_DEF)
608 clib_error_return (0, "bridge-domain already has a bvi interface",
609 format_unformat_error, input);
613 error = clib_error_return (0, "invalid configuration for interface",
614 format_unformat_error, input);
624 * Use this command put an interface into Layer 2 bridge domain. If a
625 * bridge-domain with the provided bridge-domain-id does not exist, it
626 * will be created. Interfaces in a bridge-domain forward packets to
627 * other interfaces in the same bridge-domain based on destination mac
628 * address. To remove an interface from a the Layer 2 bridge domain,
629 * put the interface in a different mode, for example Layer 3 mode.
631 * Optionally, an interface can be added to a Layer 2 bridge-domain as
632 * a Bridged Virtual Interface (bvi). Only one interface in a Layer 2
633 * bridge-domain can be a bvi.
635 * Optionally, a split-horizon group can also be specified. This defaults
636 * to 0 if not specified.
639 * Example of how to configure a Layer 2 bridge-domain with three
640 * interfaces (where 200 is the bridge-domain-id):
641 * @cliexcmd{set interface l2 bridge GigabitEthernet0/8/0.200 200}
642 * This interface is added a BVI interface:
643 * @cliexcmd{set interface l2 bridge GigabitEthernet0/9/0.200 200 bvi}
644 * This interface also has a split-horizon group of 1 specified:
645 * @cliexcmd{set interface l2 bridge GigabitEthernet0/a/0.200 200 1}
646 * Example of how to remove an interface from a Layer2 bridge-domain:
647 * @cliexcmd{set interface l3 GigabitEthernet0/a/0.200}
649 VLIB_CLI_COMMAND (int_l2_bridge_cli, static) = {
650 .path = "set interface l2 bridge",
651 .short_help = "set interface l2 bridge <interface> <bridge-domain-id> [bvi|uu-fwd] [shg]",
652 .function = int_l2_bridge,
656 * Set subinterface in xconnect mode with another interface.
658 * set interface l2 xconnect <interface> <peer interface>
660 static clib_error_t *
661 int_l2_xc (vlib_main_t * vm,
662 unformat_input_t * input, vlib_cli_command_t * cmd)
664 vnet_main_t *vnm = vnet_get_main ();
665 clib_error_t *error = 0;
669 if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
671 error = clib_error_return (0, "unknown interface `%U'",
672 format_unformat_error, input);
677 (input, unformat_vnet_sw_interface, vnm, &xc_sw_if_index))
679 error = clib_error_return (0, "unknown peer interface `%U'",
680 format_unformat_error, input);
684 /* set the interface mode */
686 (vm, vnm, MODE_L2_XC, sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL,
689 error = clib_error_return (0, "invalid configuration for interface",
690 format_unformat_error, input);
699 * Use this command put an interface into Layer 2 cross-connect mode.
700 * Both interfaces must be in this mode for bi-directional traffic. All
701 * packets received on one interface will be transmitted to the other.
702 * To remove the Layer 2 cross-connect, put the interface in a different
703 * mode, for example Layer 3 mode.
706 * Example of how to configure a Layer2 cross-connect between two interfaces:
707 * @cliexcmd{set interface l2 xconnect GigabitEthernet0/8/0.300 GigabitEthernet0/9/0.300}
708 * @cliexcmd{set interface l2 xconnect GigabitEthernet0/9/0.300 GigabitEthernet0/8/0.300}
709 * Example of how to remove a Layer2 cross-connect:
710 * @cliexcmd{set interface l3 GigabitEthernet0/8/0.300}
711 * @cliexcmd{set interface l3 GigabitEthernet0/9/0.300}
713 VLIB_CLI_COMMAND (int_l2_xc_cli, static) = {
714 .path = "set interface l2 xconnect",
715 .short_help = "set interface l2 xconnect <interface> <peer interface>",
716 .function = int_l2_xc,
720 * Set subinterface in L3 mode.
722 * set interface l3 <interface>
724 static clib_error_t *
725 int_l3 (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
727 vnet_main_t *vnm = vnet_get_main ();
728 clib_error_t *error = 0;
731 if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
733 error = clib_error_return (0, "unknown interface `%U'",
734 format_unformat_error, input);
738 /* set the interface mode */
739 if (set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0,
740 L2_BD_PORT_TYPE_NORMAL, 0, 0))
742 error = clib_error_return (0, "invalid configuration for interface",
743 format_unformat_error, input);
752 * Modify the packet processing mode of the interface to Layer 3, which
753 * implies packets will be routed. This is the default mode of an interface.
754 * Use this command to remove an interface from a Layer 2 cross-connect or a
758 * Example of how to set the mode of an interface to Layer 3:
759 * @cliexcmd{set interface l3 GigabitEthernet0/8/0.200}
761 VLIB_CLI_COMMAND (int_l3_cli, static) = {
762 .path = "set interface l3",
763 .short_help = "set interface l3 <interface>",
768 * Show interface mode.
770 * show mode [<if-name1> <if-name2> ...]
772 static clib_error_t *
773 show_int_mode (vlib_main_t * vm,
774 unformat_input_t * input, vlib_cli_command_t * cmd)
776 vnet_main_t *vnm = vnet_get_main ();
777 clib_error_t *error = 0;
780 vnet_interface_main_t *im = &vnm->interface_main;
782 vnet_sw_interface_t *si, *sis = 0;
783 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
787 /* See if user wants to show specific interface */
789 (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
791 si = pool_elt_at_index (im->sw_interfaces, sw_if_index);
792 vec_add1 (sis, si[0]);
796 error = clib_error_return (0, "unknown input `%U'",
797 format_unformat_error, input);
802 if (vec_len (sis) == 0) /* Get all interfaces */
804 /* Gather interfaces. */
805 sis = vec_new (vnet_sw_interface_t, pool_elts (im->sw_interfaces));
806 vec_set_len (sis, 0);
807 pool_foreach (si, im->sw_interfaces) { vec_add1 (sis, si[0]); }
810 vec_foreach (si, sis)
812 l2_input_config_t *config = l2input_intf_config (si->sw_if_index);
813 if (l2_input_is_bridge (config))
817 bd_id = l2input_main.bd_configs[config->bd_index].bd_id;
819 args = format (0, "bd_id %d%s shg %d", bd_id,
820 l2_input_is_bvi (config) ? " bvi" : "", config->shg);
822 else if (l2_input_is_xconnect (config))
824 mode = "l2 xconnect";
825 args = format (0, "%U",
826 format_vnet_sw_if_index_name,
827 vnm, config->output_sw_if_index);
832 args = format (0, " ");
834 vlib_cli_output (vm, "%s %U %v\n",
836 format_vnet_sw_if_index_name,
837 vnm, si->sw_if_index, args);
848 * Show the packet processing mode (Layer2 cross-connect, Layer 2 bridge,
849 * Layer 3 routed) of all interfaces and sub-interfaces, or limit the
850 * output to just the provided list of interfaces and sub-interfaces.
851 * The output shows the mode, the interface, and if the interface is
852 * a member of a bridge, the bridge-domain-id and the split horizon group (shg).
855 * Example of displaying the mode of all interfaces:
856 * @cliexstart{show mode}
858 * l3 GigabitEthernet0/8/0
859 * l3 GigabitEthernet0/9/0
860 * l3 GigabitEthernet0/a/0
861 * l2 bridge GigabitEthernet0/8/0.200 bd_id 200 shg 0
862 * l2 bridge GigabitEthernet0/9/0.200 bd_id 200 shg 0
863 * l2 bridge GigabitEthernet0/a/0.200 bd_id 200 shg 0
864 * l2 xconnect GigabitEthernet0/8/0.300 GigabitEthernet0/9/0.300
865 * l2 xconnect GigabitEthernet0/9/0.300 GigabitEthernet0/8/0.300
867 * Example of displaying the mode of a selected list of interfaces:
868 * @cliexstart{show mode GigabitEthernet0/8/0 GigabitEthernet0/8/0.200}
869 * l3 GigabitEthernet0/8/0
870 * l2 bridge GigabitEthernet0/8/0.200 bd_id 200 shg 0
873 VLIB_CLI_COMMAND (show_l2_mode, static) = {
875 .short_help = "show mode [<if-name1> <if-name2> ...]",
876 .function = show_int_mode,
879 #define foreach_l2_init_function \
880 _(feat_bitmap_drop_init) \
882 _(l2_input_classify_init) \
885 _(l2_in_out_acl_init) \
889 _(l2_efp_filter_init) \
897 l2_init (vlib_main_t * vm)
902 if ((error = vlib_call_init_function (vm, a))) return error; } \
904 foreach_l2_init_function;
909 VLIB_INIT_FUNCTION (l2_init);
912 * fd.io coding-style-patch-verification: ON
915 * eval: (c-set-style "gnu")